[whatwg] CSS Filter Effects for Canvas 2D Context

[Ashley Gullen]

>
> On another note, wouldn't it be nice if you could add a grouping operator
> such as this:
>
> gamecanvascontext.filter = '...';
> gamecanvascontext.beginGroup();
> ... // lots of drawing operators
> gamecanvascontext.endGroup();
>
>  and have everything in that group at endGroup time?
>

 Do you mean applying an effect to multiple draw operations?  Usually that
is achieved with rendering to an offscreen canvas, then rendering that with
the effect.

Ashley